Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition

M. Yi; D. H. Lu; J. G. Analytis; J. H. Chu; S. K. Mo; R. H. He; M. Hashimoto; R. G. Moore; I. I. Mazin; D. J. Singh; Z. Hussain; I. R. Fisher; Z. X. Shen

doi:10.1103/PhysRevB.80.174510

Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition

M. Yi, D. H. Lu, J. G. Analytis, J. H. Chu, S. K. Mo, R. H. He, M. Hashimoto, R. G. Moore, I. I. Mazin, D. J. Singh, Z. Hussain, I. R. Fisher, Z. X. Shen

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133 Scopus citations

Abstract

Through a systematic high-resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr) Fe2 As2, we show that the electronic structures of these compounds are significantly reconstructed across the spin density wave transition, which cannot be described by a simple folding scenario of conventional density wave ordering. Moreover, we find that LDA calculations with an incorporated suppressed magnetic moment of 0.5 μB can match well the details in the reconstructed electronic structure, suggesting that the nature of magnetism in the pnictides is more itinerant than local, while the origin of suppressed magnetic moment remains an important issue for future investigations.

Original language	English
Article number	174510
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.80.174510
State	Published - Nov 9 2009
Externally published	Yes

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Yi, M., Lu, D. H., Analytis, J. G., Chu, J. H., Mo, S. K., He, R. H., Hashimoto, M., Moore, R. G., Mazin, I. I., Singh, D. J., Hussain, Z., Fisher, I. R., & Shen, Z. X. (2009). Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition. Physical Review B - Condensed Matter and Materials Physics, 80(17), Article 174510. https://doi.org/10.1103/PhysRevB.80.174510

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title = "Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition",

abstract = "Through a systematic high-resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr) Fe2 As2, we show that the electronic structures of these compounds are significantly reconstructed across the spin density wave transition, which cannot be described by a simple folding scenario of conventional density wave ordering. Moreover, we find that LDA calculations with an incorporated suppressed magnetic moment of 0.5 μB can match well the details in the reconstructed electronic structure, suggesting that the nature of magnetism in the pnictides is more itinerant than local, while the origin of suppressed magnetic moment remains an important issue for future investigations.",

author = "M. Yi and Lu, {D. H.} and Analytis, {J. G.} and Chu, {J. H.} and Mo, {S. K.} and He, {R. H.} and M. Hashimoto and Moore, {R. G.} and Mazin, {I. I.} and Singh, {D. J.} and Z. Hussain and Fisher, {I. R.} and Shen, {Z. X.}",

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Yi, M, Lu, DH, Analytis, JG, Chu, JH, Mo, SK, He, RH, Hashimoto, M, Moore, RG, Mazin, II, Singh, DJ, Hussain, Z, Fisher, IR & Shen, ZX 2009, 'Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition', Physical Review B - Condensed Matter and Materials Physics, vol. 80, no. 17, 174510. https://doi.org/10.1103/PhysRevB.80.174510

TY - JOUR

T1 - Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition

AU - Yi, M.

AU - Lu, D. H.

AU - Analytis, J. G.

AU - Chu, J. H.

AU - Mo, S. K.

AU - He, R. H.

AU - Hashimoto, M.

AU - Moore, R. G.

AU - Mazin, I. I.

AU - Singh, D. J.

AU - Hussain, Z.

AU - Fisher, I. R.

AU - Shen, Z. X.

PY - 2009/11/9

Y1 - 2009/11/9

N2 - Through a systematic high-resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr) Fe2 As2, we show that the electronic structures of these compounds are significantly reconstructed across the spin density wave transition, which cannot be described by a simple folding scenario of conventional density wave ordering. Moreover, we find that LDA calculations with an incorporated suppressed magnetic moment of 0.5 μB can match well the details in the reconstructed electronic structure, suggesting that the nature of magnetism in the pnictides is more itinerant than local, while the origin of suppressed magnetic moment remains an important issue for future investigations.

AB - Through a systematic high-resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr) Fe2 As2, we show that the electronic structures of these compounds are significantly reconstructed across the spin density wave transition, which cannot be described by a simple folding scenario of conventional density wave ordering. Moreover, we find that LDA calculations with an incorporated suppressed magnetic moment of 0.5 μB can match well the details in the reconstructed electronic structure, suggesting that the nature of magnetism in the pnictides is more itinerant than local, while the origin of suppressed magnetic moment remains an important issue for future investigations.

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U2 - 10.1103/PhysRevB.80.174510

DO - 10.1103/PhysRevB.80.174510

M3 - Article

AN - SCOPUS:73049099005

SN - 1098-0121

VL - 80

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 17

M1 - 174510

ER -

Unconventional electronic reconstruction in undoped (Ba,Sr) Fe2 As2 across the spin density wave transition

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